use crate::math::ArgminSub;
use ndarray::{Array1, Array2};
use num_complex::Complex;
macro_rules! make_sub {
($t:ty) => {
impl ArgminSub<$t, Array1<$t>> for Array1<$t> {
#[inline]
fn sub(&self, other: &$t) -> Array1<$t> {
self - *other
}
}
impl ArgminSub<Array1<$t>, Array1<$t>> for $t {
#[inline]
fn sub(&self, other: &Array1<$t>) -> Array1<$t> {
*self - other
}
}
impl ArgminSub<Array1<$t>, Array1<$t>> for Array1<$t> {
#[inline]
fn sub(&self, other: &Array1<$t>) -> Array1<$t> {
self - other
}
}
impl ArgminSub<Array2<$t>, Array2<$t>> for Array2<$t> {
#[inline]
fn sub(&self, other: &Array2<$t>) -> Array2<$t> {
self - other
}
}
impl ArgminSub<$t, Array2<$t>> for Array2<$t> {
#[inline]
fn sub(&self, other: &$t) -> Array2<$t> {
self - *other
}
}
};
}
make_sub!(i8);
make_sub!(i16);
make_sub!(i32);
make_sub!(i64);
make_sub!(u8);
make_sub!(u16);
make_sub!(u32);
make_sub!(u64);
make_sub!(f32);
make_sub!(f64);
make_sub!(Complex<f32>);
make_sub!(Complex<f64>);
#[cfg(test)]
mod tests {
use super::*;
use ndarray::array;
use paste::item;
macro_rules! make_test {
($t:ty) => {
item! {
#[test]
fn [<test_sub_vec_scalar_ $t>]() {
let a = array![36 as $t, 39 as $t, 43 as $t];
let b = 1 as $t;
let target = array![35 as $t, 38 as $t, 42 as $t];
let res = <Array1<$t> as ArgminSub<$t, Array1<$t>>>::sub(&a, &b);
for i in 0..3 {
assert!(((target[i] - res[i]) as f64).abs() < std::f64::EPSILON);
}
}
}
item! {
#[test]
fn [<test_sub_scalar_vec_ $t>]() {
let a = array![1 as $t, 4 as $t, 8 as $t];
let b = 34 as $t;
let target = array![33 as $t, 30 as $t, 26 as $t];
let res = <$t as ArgminSub<Array1<$t>, Array1<$t>>>::sub(&b, &a);
for i in 0..3 {
assert!(((target[i] - res[i]) as f64).abs() < std::f64::EPSILON);
}
}
}
item! {
#[test]
fn [<test_sub_vec_vec_ $t>]() {
let a = array![41 as $t, 38 as $t, 34 as $t];
let b = array![1 as $t, 4 as $t, 8 as $t];
let target = array![40 as $t, 34 as $t, 26 as $t];
let res = <Array1<$t> as ArgminSub<Array1<$t>, Array1<$t>>>::sub(&a, &b);
for i in 0..3 {
assert!(((target[i] - res[i]) as f64).abs() < std::f64::EPSILON);
}
}
}
item! {
#[test]
#[should_panic]
fn [<test_sub_vec_vec_panic_ $t>]() {
let a = array![41 as $t, 38 as $t, 34 as $t];
let b = array![1 as $t, 4 as $t];
<Array1<$t> as ArgminSub<Array1<$t>, Array1<$t>>>::sub(&a, &b);
}
}
item! {
#[test]
#[should_panic]
fn [<test_sub_vec_vec_panic_2_ $t>]() {
let a = array![];
let b = array![41 as $t, 38 as $t, 34 as $t];
<Array1<$t> as ArgminSub<Array1<$t>, Array1<$t>>>::sub(&a, &b);
}
}
item! {
#[test]
#[should_panic]
fn [<test_sub_vec_vec_panic_3_ $t>]() {
let a = array![41 as $t, 38 as $t, 34 as $t];
let b = array![];
<Array1<$t> as ArgminSub<Array1<$t>, Array1<$t>>>::sub(&a, &b);
}
}
item! {
#[test]
fn [<test_sub_mat_mat_ $t>]() {
let a = array![
[43 as $t, 46 as $t, 50 as $t],
[44 as $t, 47 as $t, 51 as $t]
];
let b = array![
[1 as $t, 4 as $t, 8 as $t],
[2 as $t, 5 as $t, 9 as $t]
];
let target = array![
[42 as $t, 42 as $t, 42 as $t],
[42 as $t, 42 as $t, 42 as $t]
];
let res = <Array2<$t> as ArgminSub<Array2<$t>, Array2<$t>>>::sub(&a, &b);
for i in 0..3 {
for j in 0..2 {
assert!(((target[(j, i)] - res[(j, i)]) as f64).abs() < std::f64::EPSILON);
}
}
}
}
item! {
#[test]
fn [<test_sub_mat_scalar_ $t>]() {
let a = array![
[43 as $t, 46 as $t, 50 as $t],
[44 as $t, 47 as $t, 51 as $t]
];
let b = 2 as $t;
let target = array![
[41 as $t, 44 as $t, 48 as $t],
[42 as $t, 45 as $t, 49 as $t]
];
let res = <Array2<$t> as ArgminSub<$t, Array2<$t>>>::sub(&a, &b);
for i in 0..3 {
for j in 0..2 {
assert!(((target[(j, i)] - res[(j, i)]) as f64).abs() < std::f64::EPSILON);
}
}
}
}
item! {
#[test]
#[should_panic]
fn [<test_sub_mat_mat_panic_2_ $t>]() {
let a = array![
[41 as $t, 38 as $t],
];
let b = array![
[1 as $t, 4 as $t, 8 as $t],
[2 as $t, 5 as $t, 9 as $t]
];
<Array2<$t> as ArgminSub<Array2<$t>, Array2<$t>>>::sub(&a, &b);
}
}
item! {
#[test]
#[should_panic]
fn [<test_sub_mat_mat_panic_3_ $t>]() {
let a = array![
[1 as $t, 4 as $t, 8 as $t],
[2 as $t, 5 as $t, 9 as $t]
];
let b = array![[]];
<Array2<$t> as ArgminSub<Array2<$t>, Array2<$t>>>::sub(&a, &b);
}
}
};
}
make_test!(i8);
make_test!(u8);
make_test!(i16);
make_test!(u16);
make_test!(i32);
make_test!(u32);
make_test!(i64);
make_test!(u64);
make_test!(f32);
make_test!(f64);
}